deb4998ba50060c48cce222fd18a8eed053918d7vboxsync * Memory range attribute operations, peformed on /dev/mem
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync * $FreeBSD: src/sys/sys/memrange.h,v 1.4 1999/12/29 04:24:44 peter Exp $
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync/* $XFree86$ */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync/* Memory range attributes */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync * action */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync /* XXX want a flag that says "set and undo when I exit" */
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
deb4998ba50060c48cce222fd18a8eed053918d7vboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
deb4998ba50060c48cce222fd18a8eed053918d7vboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
deb4998ba50060c48cce222fd18a8eed053918d7vboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));